4is1
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
==Crystal structure of ZNF217 bound to DNA== | ==Crystal structure of ZNF217 bound to DNA== | ||
| - | <StructureSection load='4is1' size='340' side='right' caption='[[4is1]], [[Resolution|resolution]] 2.10Å' scene=''> | + | <StructureSection load='4is1' size='340' side='right'caption='[[4is1]], [[Resolution|resolution]] 2.10Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4is1]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IS1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4IS1 FirstGlance]. <br> | <table><tr><td colspan='2'>[[4is1]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IS1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4IS1 FirstGlance]. <br> | ||
| Line 11: | Line 11: | ||
== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/ZN217_HUMAN ZN217_HUMAN]] Binds to the promoters of target genes and functions as repressor. Promotes cell proliferation and antagonizes cell death. Promotes phosphorylation of AKT1 at 'Ser-473'.<ref>PMID:16203743</ref> <ref>PMID:17259635</ref> <ref>PMID:18625718</ref> <ref>PMID:16940172</ref> | [[http://www.uniprot.org/uniprot/ZN217_HUMAN ZN217_HUMAN]] Binds to the promoters of target genes and functions as repressor. Promotes cell proliferation and antagonizes cell death. Promotes phosphorylation of AKT1 at 'Ser-473'.<ref>PMID:16203743</ref> <ref>PMID:17259635</ref> <ref>PMID:18625718</ref> <ref>PMID:16940172</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Classical zinc fingers (ZFs) are one of the most abundant and best characterized DNA-binding domains. Typically, tandem arrays of three or more ZFs bind DNA target sequences with high affinity and specificity, and the mode of DNA recognition is sufficiently well understood that tailor-made ZF-based DNA-binding proteins can be engineered. We have shown previously that a two-zinc finger unit found in the transcriptional coregulator ZNF217 recognizes DNA but with an affinity and specificity that is lower than other ZF arrays. To investigate the basis for these differences, we determined the structure of a ZNF217-DNA complex. We show that although the overall position of the ZFs on the DNA closely resembles that observed for other ZFs, the side-chain interaction pattern differs substantially from the canonical model. The structure also reveals the presence of two methyl-pi interactions, each featuring a tyrosine contacting a thymine methyl group. To our knowledge, interactions of this type have not previously been described in classical ZF-DNA complexes. Finally, we investigated the sequence specificity of this two-ZF unit and discuss how ZNF217 might discriminate its target DNA sites in the cell. | ||
| + | |||
| + | New insights into DNA recognition by zinc fingers revealed by structural analysis of the oncoprotein ZNF217.,Vandevenne M, Jacques DA, Artuz C, Nguyen CD, Kwan AH, Segal DJ, Matthews JM, Crossley M, Guss JM, Mackay JP J Biol Chem. 2013 Apr 12;288(15):10616-27. doi: 10.1074/jbc.M112.441451. Epub, 2013 Feb 22. PMID:23436653<ref>PMID:23436653</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 4is1" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
| Line 16: | Line 25: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: Guss, J M]] | [[Category: Guss, J M]] | ||
[[Category: Jacques, D A]] | [[Category: Jacques, D A]] | ||
Revision as of 08:18, 18 December 2019
Crystal structure of ZNF217 bound to DNA
| |||||||||||
